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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package org.apache.impala.calcite.rel.phys;

import org.apache.impala.analysis.Analyzer;
import org.apache.impala.analysis.Expr;
import org.apache.impala.analysis.MultiAggregateInfo;
import org.apache.impala.analysis.SlotDescriptor;
import org.apache.impala.analysis.TableRef;
import org.apache.impala.analysis.TupleDescriptor;
import org.apache.impala.catalog.FeFsPartition;
import org.apache.impala.planner.HdfsScanNode;
import org.apache.impala.planner.PlanNodeId;

import java.util.List;

/**
 * ImpalaHdfsScanNode. Extends the HdfsScanNode to bypass processing of the
 * assignedConjuncts.
 */
public class ImpalaHdfsScanNode extends HdfsScanNode {

  private final List<Expr> assignedConjuncts_;

  private final TableRef hdfsTblRef_;

  public ImpalaHdfsScanNode(PlanNodeId id, TupleDescriptor tupleDesc,
      List<? extends FeFsPartition> partitions,
      TableRef hdfsTblRef, MultiAggregateInfo aggInfo, List<Expr> partConjuncts,
      List<Expr> assignedConjuncts, SlotDescriptor countStarDescriptor,
      boolean isPartitionScanOnly) {
    super(id, tupleDesc, assignedConjuncts, partitions, hdfsTblRef, aggInfo,
        partConjuncts, isPartitionScanOnly);
    this.assignedConjuncts_ = assignedConjuncts;
    this.countStarSlot_ = countStarDescriptor;
    this.hdfsTblRef_ = hdfsTblRef;
  }

  public TableRef getTableRef() {
    return hdfsTblRef_;
  }

  @Override
  public void assignConjuncts(Analyzer analyzer) {
    // ignore analyzer and retrieve the processed Calcite conjuncts
    this.conjuncts_ = assignedConjuncts_;
  }
}
